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发明名称
摘要
申请公布号
JPS5554470(U)
申请公布日期
1980.04.12
申请号
JP19780136790U
申请日期
1978.10.06
申请人
发明人
分类号
E02F3/413;E02F9/20;(IPC1-7):E02F3/44
主分类号
E02F3/413
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